return 
{
    on_enter = function()
        local game = require "club.threecard.roulette"
        game.router.go("/"..game.package.."/game_scene");
    end,
    on_exited = function()
        local game = require "club.threecard.roulette"
        game.router.go("/"..game.package.."/main");       
    end
}